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What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

With its all new drivers and enclosure, coupled with 5dB added efficiency over the 2000 A, we at Infinity feel that the 2000 AXT is the standard against which all others near the price range will be compared.

While it can be driven, with most of today's receivers(20 -25 watts RMS/channel minimum), it also easily accomodates the super power amplifiers which are becoming more popular in today's market.

The tweeter section.

The wave transmission line tweeter is probabyly Infinity's most stunning achievement. It's not a cone or piston drive, not an electrostatic, not a ribbon and not an ionic device. In fact, it really doesn't appear in any textbooks on acoustics.

This Walsh tweeter, acting as a vertical, pulsating cylinder, is a purely coherent source of sound radiation -directly analagous to the light emitted by a laser beam. It, therefore, is transient perfect - a feat which no other speaker has achieved.

The drive mechanism of the tweeter in this case is a voice coil in a very intense magnetic field. This drive mechanism was selected for its simplicity and inherent reliability, although any other drive system could be used inasmuch as the cone is only plucked at the base.

Sound velocities much higher than the speed of sound in air are propagated up the metallic cone. Sound is emitted on various parts of the cone corresponding to the temporal and spatial scheme of Figure 1. Thus,each bit of audio information fed into the device is emitted intact at the same instant of tome. This is true around the entire device, so that 360° coherent rediation is a reality.

This new WTLT tweeter was developed and manufactured by Infinity under license from Ohm Acoustics, and is a newly engineered extension of the Walsh patent No. 3424873.

The midrange section.

the midrange speaker is a very high efficiency 4,5" cone utilizing a large Alnico V magnet, the cone of which is treated for five times the stiffness to massratio of conventional speakers. The resulting clarity and transparency is startling.

The bass section.

The bass driver is a 12" woofer with a full one inch movement capabillity. Its cone is treated twice - once to increase the stiffness to mass ratio by a factor of five, while the second treatment ensures proper cone damping to complement the added stiffness. The woofer is loaded into the "Infiniytransmission line" enclosure for superb bass transients. it accurately reproduces the very lowest fundamental bass frequencies.

The Fisher
Model 600 is a complete stereophonic FM-AM tuner, stereo audio control and
dual-channel power amplifier - all in one integrated chassis. Only the speaker
need be added to permit the 600 to function as a high-fidelity sound system for
the reception of standard FM or AM programs or for FM-AM stereo broadcasts.

In addition
to playing Fm and AM radio programs, the Model 600 can be used as the stereo
control center and stereo amplifier for the reproduction of phonograph records
and tapes. Any type of record changer or player, tape deck or tape recorder may
be operated with the Model 600 receiver, either monophonically or
stereophonically . Provision is also made for plugging a multiplex adaptor into
the Model 600 for receiving FM multiplex stereo broadcasts.

The world's
only Stereo Receiver for the discriminating Audio enthusiast

Forthose who want the convenience of anall-in-one instrument ... versatility at the
heart of their hi-fi installation ... as well as the quality of performance and
dependability that have typified all FISHER high fidelity products for over
twenty-one years - THE FISHER TA-600 is the only possible choice.

The STO Music Server offers a silent playback system when playing from the built-in HD or CD Drive. It is a high performance audio playback system designed as a true audiophile unit.

We've incorporated all the functionality you need into the STO Music Server and eliminated the need for a PC. Now you can store your music, manage your collection and even burn CDs. All that in high performance audio fidelity.

Extend your musical repertoire and enjoy thousands of free internet radio stations, delivered directly to your stereo system. On the STO Display, get detailed information about the artist, album and track that is currently playing.

Unlike listening to your music on a computer, iPod or MP3 music players, the STO Music Server combines a high-resolution DAC, Tube Output stage, CD quality digital sound, ultra-quiet hard drives and passive cooling to eliminate fan noise to deliver the best possible hi-fi audio quality.

The Acoustic Research 10π is a new speaker system from Acoustic Research that addresses
itself to these considerations. Under actual listening conditions, the AR-10π delivers as flat an energy response as
the state of the art permits. And it is able to maintain this response
characteristic under a great variety of conditions of use. The result is a
further significant improvement in the degree of realism with which music can
be heard in the home.

The AR-10π - is
designed to reproduce music in the home as accurately as the state of the art
permits. Its ability in this respect represents a number of significant
evolutionary improvements over previous designs. Further the AR-10π - is intended to offer an unprecedented
degree of flexibility without any sacrifice in accuracy. The combination of
these characteristic, we believe, represents a significant step forward in
loudspeaker design.

The AR 10π is a no-compromise 3 way speaker system with excellent dispersion
and even energy output all across the audible spectrum. A pair of 3 position
switches allows the owner to adjust the mid and high-range drivers to the
"liveliness" of the room while the 3-position woofer environmental
control allows the owner to adjust the low-end response to speaker placement.
This allows the owner to place the speakers on the center of the wall, on the
floor against the wall or away from the wall.

SPECIFICATIONS

Drive units:

Low-Frequency: 300 mm (12
in.) acoustic suspension woofer,

Mid-Frequency: 38 mm (1-1/2
in.) hemispherical dome midrange,

High-Frequency: 19 mm (3/4 in.)
hemispherical dome highrange.

Crossover Frequencies: 525 Hz, 5000 Hz

Frequency Range: 27 Hz-30 kHz

Impedance: 4 - 8 Ω

Sensitivity: 9 watts

Controls:

Three 3-position switches for woofer environmental control and for
midrange and highrange level control

25 watts (into one speaker only) will produce
100 dB SPL in a 3000 cu π room of
average reflectivity (energy absorption coefficient of 0,15), 50 watts (25
watts per channel) will produce 103 dB SPL in the same room.

Power Handling Ability:

May be used with amplifiers capable of delivering up to 150 watts
continuous power per channel being driven to clipping 10 % of the time, on
normal music material source

Nominal Power Handing: 100 watts (max, 250)

Crossover Network:

Half-section LC network on each driver using air-core chokes and
computer grade bi-polar electrolytic capacitors. acoustic output of midrange
and highrange drivers as well as the normalizing of woofer output for the three
basic environments accomplished via an autotransformer and individual switching
networks

The first appearance
of Pathos on the hi-fi scene did not go unnoticed: a short time after its
debut, the T.T. has achieved a solid position among those very few components
which contribute to writing the history of High-Fidelity. International audio
reviews welcomed the first product from Pathos with front page covers, highly
enthusiastic comments and numerous prestigious awards.

When
listening to music reproduced through a T.T. amplifier, everyone can experience
the honest difference in terms of musicality, transparency, tonal colour and
absence of listening fatigue. The reason why this difference can be
consistently and immediately appreciated is because the T.T. is different. This
difference is named INPOL®, the
exclusive worldwide patented pure Class A feedback-free circuitry which
has been claimed to represent the most important innovation in musical
amplification of the last years.

Highly
selected components, pure silver Pathos signal wiring, and craftsmanship of the
highest level are the most appropriate compliments to the T.T. reference sound.
Through the years, the TT has been constantly perfected and updated in order to
keep this living legend alive. Today the TT is available in its original volume configuration - a purely resistive 24-step manual volume control - and also
in a remote controlled version - an optical device which drives a battery of
read relays (vacuum packed, thorium contacts), which in turn drive a network of
precision resistors (1% metal layer) in 1dB steps.

The Pathos Twin Tower is available in three versions:

Classic
(C): manual 24 step resistive volume

Reference
Remote : (RR): remote resistive volume in 1dB steps

Anniversary
: like the TT RR with balanced input

Main
Specifications:

Type: integrated amplifier operating in pure class A according to INPOL®
circuitry

When, in 1994, Sonus Faber introduced the limited-edition Guarneri Homage loudspeaker to celebrate the 250th anniversary of the death of master violin maker Giuseppe Guarneri, the company embraced the musical-instrument analogy in the process of designing the speaker. Even the design of the enclosure relied more on techniques used to build musical instruments in the 18th century than on science-based, 21st-century loudspeaker technology.The Guarneri's cabinet consists of 21 staves of thick, solid, hand-selected maple, separated by thin wooden strips, dyed aniline black, that are aged for two years before being kiln-dried. The wood is then shaped, assembled by hand, and glued, using heat and pressure techniques similar to those used for centuries in the making of violins. The cabinet's inner walls are lined as needed with copper sheeting (lead used to be in there as well, but use of the toxic heavy metal is no longer permitted), to distribute and damp resonances and produce cabinet-to-cabinet uniformity.

The cabinet's nonparallel walls are said to inhibit the generation of unwanted standing waves, and to help "guide" the backwave to the port. More important, the original Guarneri Homage, fitted with a custom-designed 6" Scan-Speak woofer and custom Dynaudio Esotar tweeter, received rave reviews across the board for both its measured and its musical performance.